/Engine/Source/Runtime/RenderCore/Public/ShaderParameters.h
static void ModifyCompilationEnvironment ( const TCHAR * ParameterName, const [FShaderParametersMetadata](API\Runtime\RenderCore\FShaderParametersMetadata) & Struct, EShaderPlatform Platform, [FShaderCompilerEnvironment](API\Runtime\RenderCore\FShaderCompilerEnvironment) & OutEnvironment )